Phichem Corporation (300398.SZ) stated on the investor interaction platform on October 31 that the company produces photoresists used in the semiconductor manufacturing and advanced packaging fields. Currently, the company's main products are divided into two categories. The first category is primarily used in the panel field with positive photoresists and negative photoresists products, both of which have already generated stable revenue. The second category includes i-line photoresists and KrF photoresists which are complementary Barc material photoresists used in the semiconductor field. Among them, both i-line photoresists and Barc photoresists have already achieved some sales.